Provision Networks Virtual Access Suite from Quest Software is the First Hosted Virtual Desktop Infrastructure for Microsoft Hyper-V

Business Wire, April 29, 2008

Provision Networks Virtual Access Suite - Power Tools Edition

With a world-class client list, comprised of some of the world's largest commercial enterprises and government organizations, Provision Networks is the most trusted name in presentation and desktop infrastructure virtualization. To learn more about Provision Networks and our enterprise access solutions, please visit us at www.ProvisionNetworks.com.

About Quest Software, Inc.

Quest Software, Inc., a leading enterprise systems management vendor, delivers innovative products that help organizations get more performance and productivity from their applications, databases, Windows infrastructure and virtual environments. Through a deep expertise in IT operations and a continued focus on what works best, Quest helps more than 90,000 customers worldwide meet higher expectations for enterprise IT. Quest provides customers with client management as well as server and desktop virtualization solutions through its subsidiaries, ScriptLogic, Vizioncore and Provision Networks. Quest Software can be found in offices around the globe and at www.quest.com.

Forward-Looking Statements

This release may include predictions, estimates and other information that might be considered forward-looking statements, including statements concerning Provision Networks' products supporting Microsoft Windows Server 2008 Hyper-V and anticipated adoption of Hyper-V. These statements are based on current expectations and assumptions that are subject to risks and uncertainties. Actual results could differ from those anticipated as a result of various factors, including: the impact of adverse changes in general economic conditions on our relationships with customers, strategic partners and vendors; reductions or delays in information technology spending; variations in demand or the size and timing of customer orders; competitive conditions in our various product areas; rapid technological change; risks associated with the development and market acceptance of new products and product strategies; disruptions caused by acquisitions of companies and/or technologies; the need to attract and retain qualified employees; and other risks inherent in software businesses. For a discussion of these and other related risks, please refer to our recent SEC filings, including our Annual Report on Form 10-K for the year ended December 31, 2007. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date thereof. We undertake no obligation to update forward-looking statements to reflect events or circumstances after the date thereof.